B&R 8BVI0110HWSS.000-1 ACOPOSmulti SafeMOTION Inverter Module

Product Overview

The 8BVI0110HWSS.000-1 (8BVI0110HWSS.000-1) is a high-performance ACOPOSmulti inverter module engineered for demanding motion control applications requiring advanced functional safety. Designed for wall mounting, this module integrates SafeMOTION technology and supports EnDat 2.2 encoder feedback, delivering a continuous current rating of 15.1 A to support high-torque secondary axes, robotic joints, and high-speed synchronized machinery. As a core component of the B&R ACOPOSmulti drive platform, it utilizes the shared DC bus architecture to optimize energy efficiency through regenerative braking, allowing kinetic energy to be redistributed within the drive network rather than dissipated as heat.

Technical Configuration

This module is built for precision and reliability, incorporating sophisticated power management and safety logic.

• Integrated Functional Safety: The "AS" designation indicates the presence of advanced safety functions, allowing for the direct execution of Safe Torque Off (STO) and other safety-critical stop routines at the hardware level, meeting SIL 3 / PL e requirements without additional contactors.

• EnDat 2.2 Feedback: Native support for EnDat 2.2 digital encoder interfaces enables high-resolution position and velocity feedback, ensuring absolute synchronization in complex multi-axis trajectories.

• Performance Versatility: Engineers can optimize the inverter stage for specific application demands by selecting switching frequencies of 5 kHz, 10 kHz, or 20 kHz, each governed by specific loss formulas to ensure thermal compliance.

• Energy Management: With an input capacitance of 23.5 microfarads, the module maintains stable performance during high-frequency switching, while the regulated 25 VDC logic input ensures consistent control signal processing even during DC bus voltage fluctuations.

Technical Specifications

Industrial Hardware FAQs

What is the advantage of the EnDat 2.2 interface in this module?

The EnDat 2.2 interface provides a bi-directional, purely digital link to the motor encoder. This improves immunity to electromagnetic interference and allows the drive to read not only position and velocity but also motor-specific parameters and diagnostic data directly from the encoder, simplifying commissioning and long-term maintenance.

How does the SafeMOTION capability impact machine integration?

SafeMOTION eliminates the need for external safety relays and mechanical contactors in many applications. By processing safety signals directly within the inverter hardware, the system can transition to a safe state faster and more reliably, significantly reducing the downtime associated with hard-wired safety logic.

How do I calculate the thermal load for my cabinet cooling system?

Power loss is directly tied to your selected switching frequency and the operating current ($I_M$). For example, at 10 kHz, use the formula $(0.49 \times I_M^2 + 4.7 \times I_M + 95)$ W. This value, plus the auxiliary consumption of 18 W and connected peripherals, defines the total heat output that your cabinet ventilation or air conditioning system must be capable of removing.

Field Commissioning and Safety Guidelines

DC Bus Bar Torque Protocol

When interlocking the 8BVI0110HWSS.000-1 into the ACOPOSmulti shared DC bus bar, ensure all terminal retention screws are tightened to factory specifications. Loose connections at these high-current points generate localized heating and ripple voltage spikes that can trigger drive faults. Always verify the bus voltage has discharged below 42 VDC using a calibrated multimeter before touching these connections.

Shielding and Grounding of Encoder Lines

Due to the high-speed nature of the EnDat 2.2 communication, cable shield grounding is critical. Use only factory-recommended shielded cables. The braid must be clamped 360 degrees at the drive's grounding plate. Do not ground the cable shield at the motor end if it creates a ground loop, and ensure all communication lines are routed at least 200 mm away from high-power PWM motor leads to prevent signal corruption.

Vertical Mounting and Convection

Mount this module strictly in a vertical orientation on a metallic sub-panel. The internal heat sinks are designed to utilize the chimney effect for natural convection. Ensure the rigid 50 mm clearance safety zone above and below the drive is strictly maintained. Blocking these airflow paths will lead to internal thermal derating, reducing the maximum current capability and potentially shortening the service life of the IGBT stage.